RuleEd, a web-based semantic network interface for constructing and revising computable eligibility rules.

RuleEd is a web-based editing environment which enables clinical trial eligibility rules entered as free text to be represented as a series of terms mapped to unique concepts in a controlled vocabulary. RuleEd provides interfaces for creating and refining concept mappings for terms within rules and disambiguating multiply-mapped terms. A combination of inter-active and non-interactive methods enable authors to specify eligibility rule representations with a fine level of control.